Features: 1. PART NUMBER: Replacing manufacturer part number for reference are 835257K1, 835257Q1. Please check the part numbers whether it suits your vehicle before purchasing. 2. STRONG COPATIBILITY: Fit for 60‑300HP,15 spline, for MerCruiser 120‑375hp Alpha and Bravo One Sterndrives, for Mariner 135‑250 HP, for Verado 200‑300 HP, etc. 3. IMPACT PROTECTION: The prop hub kit hub system acts as a buffer, protecting the drivetrain from most forms of impact. This ensures that your drivetrain remains in optimal condition for longer, reducing the need for frequent maintenance or repairs. 4. NOISE REDUCTION: The hub kit helps to prevent shift noise and propeller chatter, allowing for a quieter, smoother operation. This creates a more pleasant boating experience and causes less disturbance to the surrounding environment. 5. EASY OPERATION: Designed specifically for outboard and sterndrive engines. The kit tool simplifies the connection between the engine and propeller, making assembly and disassembly easier. Specification: Item Type: Propeller Hub Kit Material: Copper + Rubber Part Numbers: 835257K1, 835257Q1Fitment: Fit for 60-300HP, 15 spline Fit for MerCruiser Alpha and Bravo One Sterndrives 120-375hp Fit for Mariner 135-250 HP, for Verado 200-300 HP Fit for Mariner 75 HP 1984 Newer, 90 115 HP 1978 Newer, 125 HP 1994 Newer Fit for Mariner Alpha and Bravo One Sterndrives 75 HP 1984 Newer 90 115 HP 1978 Newer 125 HP 1994 Newer Does not fit for Mariner 1977 and older This hub kit will fit all propellers that accept for Flo-torq II Package List: 1 x Set of Propeller Hub Kit (5PCS)